snr=(1.5:0.25:2.5)
nol=[0.028 0.0113 0.003 3.3e-4 0.22e-3]
la=[0.024 0.007 0.002 0.9e-3 0.11e-3]
semilogy(snr,nol,'-r+',snr,la,'-b*')